Temperature Dependent Investigation on Optically Active Processes of Higher-Order Bands in Irradiated Silicon

1996 ◽  
Vol 154 (2) ◽  
pp. 789-796
Author(s):  
Yi Shi ◽  
Fengmei Wu ◽  
Youdou Zheng ◽  
M. Suezawa ◽  
M. Imai ◽  
...  
Keyword(s):  
Higher Order ◽  
Optically Active ◽  
Temperature Dependent ◽  
Active Processes

Bio-convective couple stress nanofluid behavior analysis with temperature-dependent viscosity and higher order slip encountered by a moving surface

2021 ◽  
pp. 2150199
Author(s):  
Yun-Xiang Li ◽  
Sami Ullah Khan ◽  
Faqir Shah ◽  
Hassan Waqas ◽  
M. Ijaz Khan ◽  
...  
Keyword(s):  
Couple Stress ◽  
Higher Order ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Moving Surface ◽  
Flow Equations ◽  
Thermal Features ◽  
Physical Consequences ◽  
Dependent Viscosity ◽  
Physical Features

In nanotechnology, the nanofluids are decomposition of base materials and nanoparticles where the nanoparticles are immersed in base liquid. The utilization of such nanoparticles into base liquids can significantly enhance the thermal features of resulting materials which involve applications in various industrial and technological processes. While studying the rheological features of non-Newtonian fluids, the constant viscosity assumptions are followed in many investigations. However, by considering the viscosity as a temperature-dependent is quite useful to improve the heating processes along with nanoparticles. Keeping such motivations in mind, this investigation reports the temperature-dependent viscosity and variable heat-dependent conductivity in bioconvection flow of couple stress nanoparticles encountered by a moving surface. The famous Reynolds exponential viscosity model is used to deploy the relations for temperature-dependent viscosity. Moreover, the activation energy and higher order slip (Wu’s slip) are also elaborated to make this investigation more novel and unique. The emerging flow equations for governing flow problem are formulated which are altered into non-dimensional forms. The numerical simulations with applications of Runge–Kutta fourth–order algorithm are focused to obtain the desired solution. Before analyzing the significant physical features of various parameters, the confirmation of solution is done by comparing the results with already reported investigations as limiting cases. The results are graphically elaborated with relevant physical consequences. Various plots for velocity, temperature, concentration, wall shear stress, local Nusselt number, local Sherwood number and motile density numbers are prepared.

scholarly journals Temperature-dependent electronic structure in a higher-order topological insulator candidate EuIn2As2

2020 ◽  
Vol 102 (16) ◽  
Author(s):  
Sabin Regmi ◽  
M. Mofazzel Hosen ◽  
Barun Ghosh ◽  
Bahadur Singh ◽  
Gyanendra Dhakal ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Topological Insulator ◽  
Higher Order ◽  
Temperature Dependent

scholarly journals A Higher-Order Thermomechanical Vibration Analysis of Temperature-Dependent FGM Beams with Porosities

2016 ◽  
Vol 2016 ◽  
pp. 1-20 ◽  
Author(s):  
Farzad Ebrahimi ◽  
Ali Jafari
Keyword(s):  
Differential Equations ◽  
Porous Material ◽  
Power Law ◽  
Material Properties ◽  
Solution Method ◽  
Equations Of Motion ◽  
Higher Order ◽  
Functionally Graded ◽  
Thickness Direction ◽  
Temperature Dependent

In the present paper, thermomechanical vibration characteristics of functionally graded (FG) Reddy beams made of porous material subjected to various thermal loadings are investigated by utilizing a Navier solution method for the first time. Four types of thermal loadings, namely, uniform, linear, nonlinear, and sinusoidal temperature rises, through the thickness direction are considered. Thermomechanical material properties of FG beam are assumed to be temperature-dependent and supposed to vary through thickness direction of the constituents according to power-law distribution (P-FGM) which is modified to approximate the porous material properties with even and uneven distributions of porosities phases. The governing differential equations of motion are derived based on higher order shear deformation beam theory. Hamilton’s principle is applied to obtain the governing differential equations of motion which are solved by employing an analytical technique called the Navier type solution method. Influences of several important parameters such as power-law exponents, porosity distributions, porosity volume fractions, thermal effects, and slenderness ratios on natural frequencies of the temperature-dependent FG beams with porosities are investigated and discussed in detail. It is concluded that these effects play significant role in the thermodynamic behavior of porous FG beams.

The optically active process of higher-order bands in neutron-irradiated silicon

1994 ◽  
Vol 6 (41) ◽  
pp. 8645-8653 ◽  
Author(s):  
Y Shi ◽  
F M Wu ◽  
Y D Zheng ◽  
M Suezawa ◽  
M Imai ◽  
...  
Keyword(s):  
Higher Order ◽  
Optically Active ◽  
Active Process

scholarly journals Postbuckling of thick FGM cylindrical panels with tangential edge constraints and temperature dependent properties

2016 ◽  
Vol 38 (2) ◽  
pp. 123-140
Author(s):  
Hoang Van Tung
Keyword(s):  
Material Properties ◽  
Geometrical Nonlinearity ◽  
Approximate Solutions ◽  
Higher Order ◽  
Iteration Algorithm ◽  
Power Law Distribution ◽  
Postbuckling Behavior ◽  
Temperature Dependent ◽  
Elastic Foundations ◽  
Cylindrical Panels

This paper investigates postbuckling behavior of thick  FGM cylindrical panels resting on elastic foundations and subjected to  thermal, mechanical and thermomechanical loading conditions. Material  properties are assumed to be temperature dependent, and graded in the  thickness direction according to a simple power law distribution in terms of  the volume fractions of constituents. Governing equations are based on  higher order shear deformation shell theory incorporating von Karman-Donnell  geometrical nonlinearity, initial geometrical imperfection, tangential edge  constraints and Pasternak type elastic foundations. Approximate solutions  are assumed to satisfy simply supported boundary conditions and Galerkin  procedure is applied to derive expressions of buckling loads and  load-deflection relations. In thermal postbuckling analysis, an iteration  algorithm is employed to determine critical buckling temperatures and  postbuckling temperature-deflection equilibrium paths. The separate and  simultaneous effects of tangential edge restraints, elastic foundations and  temperature dependence of material properties on the buckling and  postbuckling responses of higher order shear deformable FGM cylindrical  panels are analyzed and discussed.

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